TAILIEUCHUNG - Genetic diversity of spatially isolated populations of coconut caterpillar, Opisina Arenosella (Oecophoridae: Lepidoptera)

The genetic relationship among 14 spatially segregated populations of Karnataka and one each population from Kerala and Gujarat was established using polymerase chain reaction and arbitrary primers. A total of 24 random decamer DNA primers belonging A, B, C, G, H, I and ‘L’ series were used for RAPD-PCR. The lowest genetic similarity was noticed between the farthest populations and highest between the closest populations. Higher similarity index values were found among the populations within Karnataka. Pooled data revealed the lowest genetic similarity index of between Kerala and Gujarat populations followed by each between Kadur and Gujarat populations. A maximum genetic similarity of was recorded among Malpe and Padubidre populations (Mangalore taluk). The overall genetic similarity between populations of O. arenosella ranged from 63 to 98%, which may be considered as ‘high’. On a broad scale, results obtained agreed with the hypothesis proposed that spatial distance and genetic similarity were inversely related. High genetic similarity between the populations of O. arenosella suggests 1) populations arise from a common nucleus population, 2) populations inbreed and 3) immigration/emigration is practically zero. Corroborating with the argument, the polyphagous and migratory species like Helicoverpa armigera is reported to have a higher levels of genetic variability among the populations within and between locations. | Genetic diversity of spatially isolated populations of coconut caterpillar, Opisina Arenosella (Oecophoridae: Lepidoptera)

• Sinh học
• Genetic diversity
• Opisina arenosella
• RAPD analysis
• Coconut caterpillar spread
• Spatially isolated populations
• Genetic variability
• Similarity coefficient
• Soybean genotypes
• Genetic diversity analysis
• Molecular marker based genetic diversity
• Molecular marker
• Maize genetic diversity
• Very easy digestible
• Abiotic factor
• Genetic diversity in sunflower
• Sunflower (Helianthus annuus L )
• Inter varietal hybridization programme
• Assessment of genetic diversity
• Genetic diversity among fenugreek
• Fenugreek genotypes
• ISSR markers
• Genetic improvement
• Sequence related amplified polymorphism
• Simple sequence repeat
• Genetic diversity of watermelon
• Brassica compestris
• Genetic diversity analysis based
• Molecular level
• Onion genotypes through RAPD
• Genetic diversity remarkably
• Genetic diversity in Gangatiri cow
• Gangatiri cow
• Employing RAPD marker
• Threatened cycads (cycadaceae)
• Conservation of genetic diversity
• High propagules
• Levels of genetic diversity
• Inter Intra cluster distance
• Chickpea genotypes
• Genetic diversity in reference set
• Genetic advance
• Rainfed rice
• Rainfed rice genotypes
• Genetic diversity in rainfed rice genotypes
• Bottle gourd
• Genetic diversity in bottle gourd
• Yield improvement
• Diversity analysis
• Genetic diversity analysis in sunflower
• Parental lines
• RAPD markers
• Solanum lycopersicon L
• Genetic diversity studies
• Genetic diversity studies in tomato
• D2 statistics
• Genetic divergence
• Random amplified polymorphic DNA
• Polymerase chain reaction
• Genetic diversity analysis of citrus cultivars
• D2 analysis
• Landraces and salinity
• Saline stress condition
• Genetic diversity in traditional landraces
• Rice for yield
• Principal component analysis
• Principal component analysis approach
• Brinjal (Solanum melongena L
• Pinus kwangtungensis
• Pa Co pine (Pinus kwangtungensis Chun ex Tsiang)
• RAPD and ISSR markers
• Genetic diversity in Pa Co pine
• Thirty five genotypes
• Oilseed brassica species
• Gossypium hirsutum L
• Cotton germplasm
• Agro morphological characterization
• PIC and marker
• Genetic diversity in hybrids of tomato
• Tomato (Solanum lycopersicum L
• SSR markers
• Molecular characterization
• Soybean varieties
• Genetic diversity assessment
• Agarose gel electrophoresis
• ISSR primers
• Susceptible genotypes
• Genetic diversity in upland cotton
• Molecular markers
• Mungbean [Vigna radiata (L ) Wilczek]
• Screening and identification
• Identification of ssr markers
• Genetic diversity for mungbean
• Mahalanobis D2 statistics
• Genetic diversity in okra
• West Godavari district during kharif season
• Twenty nine hybrids